CVE-2026-114403
CVE-2026-114403 · PHPOffice PHPPresentation through 1.2.0 Deserialization via Reader\Serialized::load
This page contains facts from public vulnerability sources. Check the original advisory before updating.
PHPOffice PHPPresentation through 1.2.0 contains an insecure deserialization vulnerability that allows attackers to instantiate arbitrary PHP objects by supplying a crafted presentation file. Attackers can upload a ZIP containing PhpPresentation.xml that IOFactory::load passes to unserialize(), enabling gadget-chain code execution, file writes, or denial of service.
CVSS 9.2 · Critical · EPSS 0.5%
- Published
- Updated
Affected products and versions
phppresentation
- Versions
- ≥ 0, ≤ 1.2.0: Affected (semver)
No fix published
Original sources
- https://hackmd.io/@leediay/multiple_vulnerable_phppresentation
- https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/Reader/Serialized.php#L77-L109
- https://github.com/PHPOffice/PHPPresentation/blob/1.2.0/src/PhpPresentation/IOFactory.php#L39
- https://github.com/PHPOffice/PHPPresentation
- https://www.vulncheck.com/advisories/phpoffice-phppresentation-through-1.2.0-deserialization-via-reader-serialized-load
- https://nvd.nist.gov/vuln/detail/CVE-2026-114403